Festo SDBC-MSB-1L-PU-K-0.3-M8 C-Slot Proximity Sensor

USD 29.10

C-slot proximity sensor with PNP N/O output. IP67/IP68 rated, oil-resistant, and features a 0.3m M8 pigtail cable for rapid connectivity.

SKU Festo-8139726 Category
Industrial Automation > Sensors > Proximity Sensors

Festo SDBC-MSB-1L-PU-K-0.3-M8 C-Slot Proximity Sensor

Model Identifier SDBC-MSB-1L-PU-K-0.3-M8
Official Part Number 8139726
GTIN Standard 4052568568528

Technical Overview

The Festo 8139726 (Model SDBC-MSB-1L-PU-K-0.3-M8) is a highly reliable magneto-resistive proximity sensor engineered for accurate contactless position detection in industrial automation. Specifically designed to integrate seamlessly into pneumatic cylinder C-slots, this solid-state sensor provides a 3-wire PNP normally-open (N/O) switching output. It operates efficiently on a 10 to 30 V DC supply (24 V DC nominal) and includes a highly visible LED indicator for fast setup and status monitoring. Built to withstand demanding manufacturing environments, it boasts IP67 and IP68 protection ratings along with an oil-resistant cable suitable for continuous flexing in energy chains. The sensor features a 0.3-meter pigtail cable terminated with an industry-standard 3-pin M8x1 plug, ensuring rapid and secure electrical connectivity.

Key Features

  • Magneto-resistivemeasuringprincipleprovideshighlyaccurate, wear-freecontactlesspositionsensing[1.5].
  • Compact housing designed for direct top-down insertion and screw-clamping into standard C-slot pneumatic cylinders.
  • Built-in LED status indicator enables instant visual confirmation of switching state during operation and setup.
  • Rugged environmental protection rated to IP67 and IP68 standards to withstand dust and fluid ingress.
  • Oil-resistant, halogen-free cable designed specifically to endure the repetitive flexing of industrial energy chains.
  • Features a 0.3-meter pigtail cable with a secure 3-pin M8x1 plug for rapid installation and quick-disconnect maintenance.

Contactless Magneto-resistive Sensing with IP67/IP68 Protection

Technical Specification Matrix

ParameterValue
Measuring PrincipleMagneto-resistive
Switching OutputPNP, 3-wire N/O (Normally Open)
Operating Voltage Range10 - 30 V DC (Nominal: 24 V DC)
Max. Switching Capacity3 W
Max. Output Current100 mA
Electrical ConnectionCable with M8x1 plug, 3-pin
Cable Length0.3 m
Mounting TypeInsertable in C-slot from above
Degree of ProtectionIP67, IP68 (IEC 60529)
Status IndicationYellow LED
Special CharacteristicsOil resistant, suitable for energy chains, Halogen-free

Industrial Applications

1. Automated Pneumatic Gripper Position Feedback

Integrated directly into the C-slots of Festo parallel or adaptive grippers (such as the DHPL or HPPF series) to detect the exact open or closed position of the jaws.

Problem Solved

Provides the PLC with exact real-time confirmation that a workpiece is securely grasped or released, preventing robotic arms from moving prematurely and avoiding dropped parts.

Pneumatic GripperC-slotMagneto-resistivePosition FeedbackPNP Switching

2. Continuous Motion Energy Chain Integration

Utilized in high-speed packaging or pick-and-place gantry systems where sensor cables must be routed through flexible, fast-moving cable carriers.

Problem Solved

Standard PVC sensor cables often degrade or snap under continuous flex fatigue. This sensor's specialized cable rating ensures long-term electrical integrity through millions of dynamic flex cycles.

Energy ChainDynamic FlexingSolid-state SensorAutomation GantryM8 Quick-disconnect

3. High-Speed Actuator Monitoring in Machining Environments

Deployed on linear pneumatic actuators operating near CNC milling enclosures where industrial cutting fluids, lubricants, and washdowns are prevalent.

Problem Solved

Mechanical limit switches frequently fail or jam due to fluid and particulate ingress. The IP67/IP68 rating combined with oil-resistant cabling ensures uninterrupted, wear-free sensing even when continuously exposed to harsh machining environments.

IP68 RatingOil-resistantLinear ActuatorHarsh EnvironmentContactless Sensing

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